Add t-string fixtures for rules that do not need to be modified (#19146)

I used a script to attempt to identify those rules with the following
property: changing f-strings to t-strings in the corresponding fixture
altered the number of lint errors emitted. In other words, those rules
for which f-strings and t-strings are not treated the same in the
current implementation.

This PR documents the subset of such rules where this is fine and no
changes need to be made to the implementation of the rule. Mostly these
are the rules where it is relevant that an f-string evaluates to type
`str` at runtime whereas t-strings do not.

In theory many of these fixtures are not super necessary - it's unlikely
t-strings would be used for most of these. However, the internal
handling of t-strings is tightly coupled with that of f-strings, and may
become even more so as we implement the upcoming changes due to
https://github.com/python/cpython/pull/135996 . So I'd like to keep
these around as regression tests.

Note: The `flake8-bandit` fixtures were already added during the
original t-string implementation.

| Rule(s) | Reason |
| --- | --- |
| [`unused-method-argument`
(`ARG002`)](https://docs.astral.sh/ruff/rules/unused-method-argument/#unused-method-argument-arg002)
| f-strings exempted for msg in `NotImplementedError` not relevant for
t-strings |
| [`logging-f-string`
(`G004`)](https://docs.astral.sh/ruff/rules/logging-f-string/#logging-f-string-g004)
| t-strings cannot be used here |
| [`f-string-in-get-text-func-call`
(`INT001`)](https://docs.astral.sh/ruff/rules/f-string-in-get-text-func-call/#f-string-in-get-text-func-call-int001)
| rule justified by eager evaluation of interpolations |
| [`flake8-bandit`](https://docs.astral.sh/ruff/rules/#flake8-bandit-s)|
rules justified by eager evaluation of interpolations |
| [`single-string-slots`
(`PLC0205`)](https://docs.astral.sh/ruff/rules/single-string-slots/#single-string-slots-plc0205)
| t-strings cannot be slots in general |
| [`unnecessary-encode-utf8`
(`UP012`)](https://docs.astral.sh/ruff/rules/unnecessary-encode-utf8/#unnecessary-encode-utf8-up012)
| cannot encode t-strings |
| [`no-self-use`
(`PLR6301`)](https://docs.astral.sh/ruff/rules/no-self-use/#no-self-use-plr6301)
| f-strings exempted for msg in NotImplementedError not relevant for
t-strings |
| [`pytest-raises-too-broad`
(`PT011`)](https://docs.astral.sh/ruff/rules/pytest-raises-too-broad/) /
[`pytest-fail-without-message`
(`PT016`)](https://docs.astral.sh/ruff/rules/pytest-fail-without-message/#pytest-fail-without-message-pt016)
/ [`pytest-warns-too-broad`
(`PT030`)](https://docs.astral.sh/ruff/rules/pytest-warns-too-broad/#pytest-warns-too-broad-pt030)
| t-strings cannot be empty or used as messages |
| [`assert-on-string-literal`
(`PLW0129`)](https://docs.astral.sh/ruff/rules/assert-on-string-literal/#assert-on-string-literal-plw0129)
| t-strings are not strings and cannot be empty |
| [`native-literals`
(`UP018`)](https://docs.astral.sh/ruff/rules/native-literals/#native-literals-up018)
| t-strings are not native literals |

crates/ruff_linter/src/rules/flake8_bugbear/snapshots/ruff_linter__rules__flake8_bugbear__tests__B018_B018.py.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/ruff_linter/src/rules/flake8_bugbear/mod.rs
-snapshot_kind: text
 ---
 B018.py:11:5: B018 Found useless expression. Either assign it to a variable or remove it.
    |

crates/ruff_linter/src/rules/flake8_gettext/snapshots/ruff_linter__rules__flake8_gettext__tests__f-string-in-get-text-func-call_INT001.py.snap

@@ -1,9 +1,10 @@
 ---
 source: crates/ruff_linter/src/rules/flake8_gettext/mod.rs
-snapshot_kind: text
 ---
 INT001.py:1:3: INT001 f-string is resolved before function call; consider `_("string %s") % arg`
   |
 1 | _(f"{'value'}")
   |   ^^^^^^^^^^^^ INT001
+2 |
+3 | # Don't trigger for t-strings
   |

crates/ruff_linter/src/rules/flake8_logging_format/snapshots/ruff_linter__rules__flake8_logging_format__tests__G004.py.snap

@@ -52,4 +52,6 @@ G004.py:15:6: G004 Logging statement uses f-string
 14 | info(f"{name}")
 15 | info(f"{__name__}")
    |      ^^^^^^^^^^^^^ G004
+16 |
+17 | # Don't trigger for t-strings
    |

crates/ruff_linter/src/rules/flake8_pytest_style/snapshots/ruff_linter__rules__flake8_pytest_style__tests__PT016.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/ruff_linter/src/rules/flake8_pytest_style/mod.rs
-snapshot_kind: text
 ---
 PT016.py:19:5: PT016 No message passed to `pytest.fail()`
    |
@@ -67,4 +66,6 @@ PT016.py:25:5: PT016 No message passed to `pytest.fail()`
 24 |     pytest.fail(reason="")
 25 |     pytest.fail(reason=f"")
    |     ^^^^^^^^^^^ PT016
+26 |
+27 | # Skip for t-strings
    |

crates/ruff_linter/src/rules/flake8_unused_arguments/snapshots/ruff_linter__rules__flake8_unused_arguments__tests__ARG002_ARG.py.snap

@@ -66,3 +66,13 @@ ARG.py:216:24: ARG002 Unused method argument: `x`
     |                        ^ ARG002
 217 |         print("Hello, world!")
     |
+
+ARG.py:255:20: ARG002 Unused method argument: `y`
+    |
+253 | ###
+254 | class C:
+255 |     def f(self, x, y):
+    |                    ^ ARG002
+256 |         """Docstring."""
+257 |         msg = t"{x}..."
+    |

crates/ruff_linter/src/rules/pylint/snapshots/ruff_linter__rules__pylint__tests__PLR6301_no_self_use.py.snap

@@ -75,3 +75,21 @@ no_self_use.py:140:9: PLR6301 Method `unused_message_2` could be a function, cla
 141 |         msg = ""
 142 |         raise NotImplementedError(x)
     |
+
+no_self_use.py:145:9: PLR6301 Method `developer_greeting` could be a function, class method, or static method
+    |
+144 | class TPerson:
+145 |     def developer_greeting(self, name):  # [no-self-use]
+    |         ^^^^^^^^^^^^^^^^^^ PLR6301
+146 |         print(t"Greetings {name}!")
+    |
+
+no_self_use.py:151:9: PLR6301 Method `tstring` could be a function, class method, or static method
+    |
+149 |         print(t"Hello from {self.name} !")
+150 |
+151 |     def tstring(self, x):
+    |         ^^^^^^^ PLR6301
+152 |         msg = t"{x}"
+153 |         raise NotImplementedError(msg)
+    |

crates/ruff_linter/src/rules/pyupgrade/snapshots/ruff_linter__rules__pyupgrade__tests__UP012.py.snap

@@ -576,6 +576,8 @@ UP012.py:86:5: UP012 [*] Unnecessary call to `encode` as UTF-8
 85 | # Refer: https://github.com/astral-sh/ruff/issues/11736
 86 | x: '"foo".encode("utf-8")'
    |     ^^^^^^^^^^^^^^^^^^^^^ UP012
+87 |
+88 | # AttributeError for t-strings so skip lint
    |
    = help: Rewrite as bytes literal
 
@@ -585,3 +587,6 @@ UP012.py:86:5: UP012 [*] Unnecessary call to `encode` as UTF-8
 85 85 | # Refer: https://github.com/astral-sh/ruff/issues/11736
 86    |-x: '"foo".encode("utf-8")'
    86 |+x: 'b"foo"'
+87 87 | 
+88 88 | # AttributeError for t-strings so skip lint
+89 89 | (t"foo{bar}").encode("utf-8")

crates/ruff_linter/src/rules/pyupgrade/snapshots/ruff_linter__rules__pyupgrade__tests__UP018.py.snap

@@ -660,6 +660,7 @@ UP018.py:90:1: UP018 [*] Unnecessary `int` call (rewrite as a literal)
    90 |+1 and None
 91 91 | float(1.)and None
 92 92 | bool(True)and()
+93 93 | 
 
 UP018.py:91:1: UP018 [*] Unnecessary `float` call (rewrite as a literal)
    |
@@ -678,6 +679,8 @@ UP018.py:91:1: UP018 [*] Unnecessary `float` call (rewrite as a literal)
 91    |-float(1.)and None
    91 |+1. and None
 92 92 | bool(True)and()
+93 93 | 
+94 94 | 
 
 UP018.py:92:1: UP018 [*] Unnecessary `bool` call (rewrite as a literal)
    |
@@ -694,3 +697,6 @@ UP018.py:92:1: UP018 [*] Unnecessary `bool` call (rewrite as a literal)
 91 91 | float(1.)and None
 92    |-bool(True)and()
    92 |+True and()
+93 93 | 
+94 94 | 
+95 95 | # t-strings are not native literals